Bike Forums - View Single Post - What is 700cc a measurement of in a wheel set?

10-30-12 | 01:30 PM

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Doohickie

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Bikes: 1966 Raleigh DL-1 Tourist, 1973 Schwinn Varsity, 1983 Raleigh Marathon, 1994 Nishiki Sport XRS

Quote:

Originally Posted by teachme

I teach 5th grade math and we did an activity on the circumference of a circle using the front wheel off my Specialized Sectuer as a manipulative. We measured the circumferance of the tire on the wheel and it measured out to be approximately 84 inches which converts to approximately 213.5cm. So, what does the 700cc stand for?

Thanks,
Bert

Divide 2135 by 700. What do you get? (It's off a bit, but it should be pi; 700 refers to the nominal tire diameter at the tread. Kind of. Tire sizes are very weird.)

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Originally Posted by bragi

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